Data from the table presented on pages 370, 372 of the Groupe VI. - GTnie civil. - Moyens de transport. DeuxiFme partie. Classes 32 (Tome I), part of the series of Rapports du Jury Internationale of the Exposition Unverselle Internationale de 1900 Paris Exposition, hosted on the website of Le Conservatoire numTrique des Arts & MTtiers ([], Accessed 21 August 2005).
This design is similar to the one described in Locobase 3672 (Gruppo 552), but has a somewhat smaller boiler. Locobase notes that the present class was credited to the Adriatic.The Jury report tells us (286-287) that the exposition locomotive was works number 468.
The boiler was fitted with Serve finned firetubes.
Data from the table presented on pages 370, 372 of the Groupe VI. - GTnie civil. - Moyens de transport. DeuxiFme partie. Classes 32 (Tome I), part of the series of Rapports du Jury Internationale of the Exposition Unverselle Internationale de 1900 Paris Exposition, hosted on the website of Le Conservatoire numTrique des Arts & MTtiers ([], Accessed 21 August 2005).
This design is similar to the one described in Locobase 3672 (Gruppo 552), but has a somewhat smaller boiler. Locobase notes that the present class was credited to the Adriatic.The Jury report tells us (286-287) that the exposition locomotive was works #468.
The boiler was fitted with Serve finned firetubes.
Data from "Fouf-Wheel Coupled Passenger Locomotive; Paris Exhibition" , Engineering, Volume 70 (23 November 1900), pp 661, 664.. Works numbers were 415-426 in 1899 and 468-4479 in 1900.
Locobase 12516 describes the first few batches of this numerous two-cylinder simple-expansion design.
The boiler was fitted with Serve internally finned firetubes.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | 180 | 1855 | RA 180bis/Gruppo 552 |
Locobase ID | 6788 | 12516 | 20994 |
Railroad | Adriatico | Adriatico | Adriatico |
Country | Italy | Italy | Italy |
Whyte | 4-4-0 | 4-4-0 | 4-4-0 |
Number in Class | 1 | 10 | 12 |
Road Numbers | 1889 | 1855-1864 | 1865-1876, 1889-1900/552-013 to 552-036 |
Gauge | Std | Std | Std |
Number Built | 1 | 10 | 12 |
Builder | Breda | Breda | |
Year | 1887 | 1887 | 1899 |
Valve Gear | Stephenson | Stephenson | Stephenson |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | 7.97 / 2.43 | 7.97 / 2.43 | 8.14 / 2.48 |
Engine Wheelbase (ft / m) | 21.98 / 6.70 | 21.98 / 6.70 | 21.98 / 6.70 |
Ratio of driving wheelbase to overall engine wheelbase | 0.36 | 0.36 | 0.37 |
Overall Wheelbase (engine & tender) (ft / m) | |||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 64,485 / 29,250 | 64,485 / 29,250 | 64,485 / 29,250 |
Engine Weight (lbs / kg) | 108,042 / 49,000 | 108,042 / 49,007 | 108,026 / 49,000 |
Tender Loaded Weight (lbs / kg) | 70,548 / 32,000 | 70,548 / 32,000 | 70,548 / 32,000 |
Total Engine and Tender Weight (lbs / kg) | 178,590 / 81,000 | 178,590 / 81,007 | 178,574 / 81,000 |
Tender Water Capacity (gals / ML) | 3168 / 12 | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3 / 3 | 3 / 3 | 3.30 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 | 54 / 27 | 54 / 27 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 76.40 / 1940 | 76.40 / 1941 | 76.40 / 1940 |
Boiler Pressure (psi / kPa) | 198.70 / 1370 | 203 / 1400 | 203.10 / 1400 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 23.62" / 480x600 | 18.9" x 23.62" / 480x600 | 18.9" x 23.62" / 480x600 |
Tractive Effort (lbs / kg) | 18,652 / 8460.41 | 19,056 / 8643.67 | 19,065 / 8647.75 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.46 | 3.38 | 3.38 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 125 - 2.559" / 65 | 125 - 2.56" / 65 | 120 - 2.559" / 65 |
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | 10.50 / 3.20 | 10.50 / 3.20 | 10.50 / 3.20 |
Firebox Area (sq ft / m2) | 129.17 / 12 | 129.12 / 12 | 129.17 / 12 |
Grate Area (sq ft / m2) | 25.51 / 2.37 | 25.50 / 2.37 | 25.51 / 2.37 |
Evaporative Heating Surface (sq ft / m2) | 1720 / 159.75 | 1719 / 159.76 | 1720 / 159.80 |
Superheating Surface (sq ft / m2) | |||
Combined Heating Surface (sq ft / m2) | 1720 / 159.75 | 1719 / 159.76 | 1720 / 159.80 |
Evaporative Heating Surface/Cylinder Volume | 224.26 | 224.13 | 224.26 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 5069 | 5177 | 5181 |
Same as above plus superheater percentage | 5069 | 5177 | 5181 |
Same as above but substitute firebox area for grate area | 25,666 | 26,211 | 26,234 |
Power L1 | 7805 | 7969 | 7977 |
Power MT | 533.68 | 544.89 | 545.44 |